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GRBURETOR No. 377.607,. Patented Peb'. 1,1888;

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A- UNITED STATES PATENT OFFICE.

MICHAEL A.l FOSTER, OF sr. LOUIS, MISSOURI.

OARBURETOR.

l SPECIFICATION forming part of Letters Patent No. 377,607, dated February 7,1888. l Application filed March 18, 1887. Serial No. 231,399. (No model.) l

' To all whom it may concern,.-

ted lines.

Be .it knownthat I, MICHAEL A. FOSTER, of the city of St. Louis, in the State of Missouri, have invented a certain newand useful Improvement in Carburetors, of which the following is a.V full, clear, and exact description, reference being had to the accompanying drawings, forming part of this speoication, and in which- Figure I is a side elevation of myimproved generator, showing part of the casing in vcrti.

cal section. Fig. II is a side elevation looking 4in the direction of the arrowin Fig. I. Figs. III and IV are side elevations taken from different positions. Fig. V is a vertical longitudinal section taken on line V V, Fig. II, the gasometer being shown raised in dot- Fig. VI is a horizontal transverse section taken on line VI VI, Fig. V, part of the wire-gauze being broken away. fFig.VII is a similar view taken on line VII VII, Fig.l V. Fig. VIII is an enlarged perspective view of the brake and the device for adjusting it.

Fig. IX is an enlarged detail view, to be here-y through a body of oil; and myinvention con! sists in features of novely hereinafter more fully described, and pointed out in the claims.

Referring to the drawings, 1 represents a gasometer fitting in a water-chamber, 2, formed by cups or tanks 3 4, having a bottom, 5, but being open at top. The gasometer is guided and held from horizontal movement, 'but permitted to move vertically, by slotted arms 6, secured to the top of the tanks 3 4, in which t projections 7 on the gasometer. The gasometer israised by means of air forced into the tank 3 by means of a bellows, 8, provided with an inlet valve, 9, communicating with the outer air, and a valve, 10, communicating, through a pipe, 11,with the upper part of the tank 3. The pipe 11 is provided at its upper end withpa checkvalve,12, to prevent the escape of air through the pipe. The bellows is operated by a crank, 13, to which it is connected by a pitman, 14, and a fulcrumed rod, 90. (See Figs. I I, V.) The crank 13 is secured to a shaft, 15, journaled in a frame, 16, and lto which -is secured a* pinion, 17, that meshes into a wheel, 18, partly broken away to show drum 20, on-a shaft, 19, journaled in the frame 16. On the shaft 19 isa drum, 20, around whichl is wound one end of a cord, rope, or cable, 2l, tothe other end of which is secured ya weight, 22, the cable preferably passing under pulleys 23 and overa pulley,

24, and the eXtreme end of the cable being preferably secured to a Xed object, 25, as shown in Fig. III. It will be seen that as the weight falls the, bellows will be operated through means of the described connection.`

The gearing is preferably provided with a iiywheel, 26, on a shaft, 27, gearedinto the pinion 17,.the object ofthe y-wheel `being to avoid dead-centers. Theshaftof the fly-wheel is journaled in the frame 16, the frame being -secured to the tank 4 by screws or bolts 28.

The air that'is forced into the tank 3 by the bellows escapes through a pipe, 29, within the tank into a pipe, 30, with which the pipe 29 communicates at 3l. The pipe 30 is kformed into several coils at one side o f the tank 4, and the coils are inclosed by a casing, 32, open at bottom and provided with a neck or chimney, 33, on top. The pipe 30 is provided with a valve, 34, to regulate the passage of the air,

which is indicated by featherless arrows` in- Fig. V. The lowerl end of the pipe communicates with a horizontal bent perforated pipe, 35, in the bottom of an oil-tank, 36, supported on legs 37, provided with adjustable feet 38, by t which the apparatus may be made toset level onuneven'surfaces. (See Fig. V.) The air escaping through the perforations in the pipe v35, as shown by the arrows in Fig. V, passes from, the apparatus. I

I have shown the pipe 4l tappedrby a bifur-v cated pipe, 44, on one arm of which is a testing-burner,.45,.and on the other arrn'of which is a burner, 46, for heating theair in the pipe 3Q within the casing 32, the heat passing out IOG through the chimney 33. The air is thus heated to improve its capacity for taking up carbureted hydrogen when passing through the oil.

As the air escapes from the tank 3, the gasometer falls, (the mechanism that lifts the gasometer by working the bellows and forcing the air into the tank 3, as stated, being automati` cally stopped,) and as the gasometer reaches its lower position the bellows is started again automatically. This stopping and starting of the mechanism for operating the bellows is effected as follows: Supposing the gasometer to be elevated to its highest position, as shown by dotted lines in Fig. V, the mechanism is stopped by a brakelshoe, 50, brought against a wheel or drum, 51, on the shaft 27 of the fly-wheel, by an arm, 52, on the gasometer coming against a projection, 53, on the upper end yof a bar or plate, 54, the bar being connected at its lower end by a link, 55, to a crank, 56, on a rock-shaft, 57, to which the shoe is secured. The mechanism that operates the bellows is thus automatically stopped by the gasometer when the latter reaches its highest position. As the gasometer reaches its lower position, the arm 52 comes against a projection or shoulder, 58, on the lower end of the bar or plate 54, and by moving the plate downward rocks the shoe 50 away from the drum or wheel 51, and the mechanism starts up again and works the bellows, as described, raising the gasometer again.

For the purpose of causing the arm 52 to` operate sooner or later on the bar 54, I make the latter adjustable in length by forming'it in two pieces connected by a bolt or rod, 59, having a right and left thread. By turning this bolt in the proper direction it will be seen that the bar will be shortened or lengthened and the shoulders 53 and 58 brought nearer together or moved farther apart. The bar is held in place by keepers or straps 60, securing it to a ixed plate, 61, made fast to the tanks 3 4. As the shoe 50 becomes worn, it may be set up by a wedge, 62, located behind it, and adjusted by nuts 63 on a stem, 64, of the shoe, the nuts being respectively above and below an arm, 65, on the shaft 57, and through which the stem 64 passes.

The oil is poured into the tank 36 through a pipe, 80, having a filling-cup, 81, and avalve, 82. The pipe communicates with the tank at 83 and S4, and is provided with a valve, 85, at its lower end, by which the oil may be drawn ont of the tank, if desired.

The bottom of the tank may be provided with a removable plate, 88, bolted in place, and closing a handhole, 89, through means of which the tank may be cleaned.

Instead of the apparatus being supported on feet it may be suspended by means of a spider, 67, and rope or cable 68. (See Fig. IX.) The spider is formed upon the upper ends of the slotted arms 6.

The gasometer may be provided with a pipe, 70, having a valve, 71, and branches 72 at top to allow oil to be poured into the tank 3, if desired, to in a measure load the air with gas at this point.

The pipes 30 and 41 may be provided with escape-valves 75, if desired.

The tanks 3 4 may be connected to the tank 36 by arms 100.

101 represents a valve for drawing the water from chamber 2.

The tank 4 is provided with a iiange, 105, into which water is poured to iill the chamber 2, the water passing through perforations 106 in the tank above the flange. (See Fig..V.)

If the gas is too rich, it may be weakened by air entering the pipe 41 through a. pipe, 107, connecting the pipe 41 to the air-pipe 30. The pipe 107 is provided with a valve, 108.

The pipe 30 may be provided with a checkvalve, 109, toprevent the return of the air.

115 represents arms or brackets formed upon or secured to the top of the tank 36, and through which the pipes 30 and 41 pass, and by which the pipes are held firmly in vertical position.

I claim as my invention-.

l. In acarburetor, the combination,with an air-tank, an oil-tank, and a pipe for supplying oil to the air-tank, of an inlet-pipe and au outlet-pipe communicating with the air-tank, said outlet-pipe also communicating with the oil-tank, and a carbureted-air pipe leading from the oil-tank, as and for the purposes set forth.

2. The combination, in a carburetor,with an air-tank, an oil-tank, a pipe connecting the air-tank with the oil-tank, a pipe leading from the oil-tank, and a suitable airsupply for the air-tank, of a pipe for supplying oil to the airtank,and a pipe provided with suitable cocks connecting the inlet and outlet pipes of the oil-tank, for the purposes set forth.

3. 'The combination, with a carburetor having air-supplying mechanism, substantially as herein described, of an automatic braking lmechanism,which consists in a brake-shoe, 50, mounted on the shaft 57, a crank, 56, vertical shouldered plate 54, and a projection on the gasometer for engaging the shouldered plate and applying the brakes to the driving mechanism, as shown and described.

4. In combination with a carburetor made substantially as herein shown and described, mechanism for governing the operation of the air-supply bellows, which-consists in a weighted cord, a winding-drum, and intermediate driving-gear, a brake, substantially as described, operated by a projection on the gasometer engaging `an adjustable shouldered plate connected to a crank on the brake-shaft, said shouldered plate consisting of the parts 53 58 and adj usting-screw 59, as set forth.

5. In a carburetor, substantially as herein described, the combination, with the mechanism for operating the air-supply, of a brake bearing against a wheel in said mechanism,

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said brake consisting of a shoe, 50, mounted ing upon the wedge, a crank on the shaft, and 40 above plate 39, and an outlet, 41, for car- Io connected to the crank a rod which is conbnreted air, the said pipe 30 terminating in Y trolled by the gasometer. the perforated coil beneath the plate 39, as and 6; The combination, with the air-tank and for the purpose set forth.

oil-tank of a. pipe 30 connecting the two A tanks, a bellows, 8,supported by ab pipe, 11, MICHAEL A' FOSTER projecting from theair-tank and making airl In presence ofconnection between the bellows and said tank, JAS.' E. KNIGHT,

perforated plat-e 39 in the oil-tank, wire-ganze EDw. S. KNIGHT. 

